So I am driving home from work this morning on the highway in my 08 Vue XE I4 FWD doing about 60, and all of the sudden my Traction,Stability, BRAKE and ABS lights all come on at the same time (Never had seen this before while car is running), I get an on demand diagnostic from OnStar and they say it is due to error code U0121, Lost Communication With Anti-Lock Brake System (ABS) Control Module. Is this easy to fix?:

Last edited by LaboysToy; 06-17-2018 at 10:04 AM..

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Yes, I now know this and its pricey, I brought the part and will have them install. (Sigh) Im not sure why on the 2.4L they have that big black plastic airbox attachment to the engine blocking the engine cover, Its a pain to remove and makes most repairs annoying.

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